What is the size of the Momentary Metal Pushbutton

The size of a momentary metal pushbutton can vary widely based on the specific design and application. However, these buttons typically range in sizes commonly specified by their mounting hole diameter. The most popular sizes are 12mm, 16mm, 19mm, 22mm, and 25mm. Here, we'll delve into the dimensions, features, and typical applications of these various sizes to give a comprehensive understanding.

Common Sizes and Dimensions

1. 12mm Diameter:

Mounting Hole: 12mm diameter.

Button Diameter: Approximately 14-16mm.

Height: Around 20-30mm including the switch body and terminals.

Applications: Ideal for compact electronic devices, handheld gadgets, and automotive applications where space is limited.

2. 16mm Diameter:

Mounting Hole: 16mm diameter.

Button Diameter: Typically around 18-20mm.

Height: Around 25-35mm.

Applications: Common in industrial control panels, security systems, and home automation.

3. 19mm Diameter:

Mounting Hole: 19mm diameter.

Button Diameter: About 21-23mm.

Height: Around 30-40mm.

Applications: Used in more robust industrial and commercial applications, including machinery controls and elevator panels.

4. 22mm Diameter:

Mounting Hole: 22mm diameter.

Button Diameter: Typically around 24-26mm.

Height: Around 35-45mm.

Applications: Suitable for heavy-duty industrial applications, such as manufacturing equipment and large machinery.

5. 25mm Diameter:

Mounting Hole: 25mm diameter.

Button Diameter: Approximately 27-29mm.

Height: Around 40-50mm.

Applications: Used in applications requiring a larger interface, such as public kiosks, control consoles, and equipment requiring gloved operation.

Features

1. Momentary Action: These switches only stay engaged while being pressed. Once released, they return to their original position. This is useful for applications requiring a temporary connection, such as resetting devices or triggering a function without maintaining a continuous state.

2. Metal Construction: The housing is typically made from stainless steel or aluminum, offering durability, corrosion resistance, and an aesthetically pleasing finish. This makes them suitable for environments where robustness and longevity are essential.

3. Variety of Actuator Styles: Momentary metal pushbuttons can come with flat, domed, or raised actuators. Some models may also feature illuminated rings or symbols for better visibility and user feedback.

4. Ingress Protection (IP) Ratings: Many momentary metal pushbuttons are designed with IP ratings (e.g., IP65, IP67) that make them waterproof and dustproof. This extends their usability to outdoor and harsh environments.